Thread: I need some 383 stroker help, Please!!!

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Originally posted by Kodiak
I have pics of two pistons in my photo gallery, the third piston is still in the engine. Both pistons have broke in the same manner. I have been filing the rings for each hole and made sure that is the hole they go in. I went with Silv-O-Lite pistons this last time because my machenist said he would stand behind them. I haven't tore the engine down after this third time but I know this is what has happened to them ( spark plug smashed flat). I'm going to try it one more time later this month, and if it don't work this time, I may have a crank for sale.

Kodiak

i dont see anything that says those pistons ran lean. those pistons are broke. i belive you dont have enough gap in the ring. how much gap do you have in the ring when you check the gap in the block? it dont look like much gap in the ring thats on the piston in the pic. i belive i can make those rings butt each other just mashing them with my hand and that shouldnt be.
i belive the ring is to tight and when it get hot its pulling the top of the piston off. let me know what gap you had and let some others give their opinion. is the machenist gonna stand behind these pistons. i really dont see the heat.

i just went back and looked at the pistons again and you can see carbon still on the top of the piston, dont belive that would be if heat just eat a hole in you piston.